diff --git a/hosts/common/programs/captree.nix b/hosts/common/programs/captree.nix
index 84be325f2..9e343d08b 100644
--- a/hosts/common/programs/captree.nix
+++ b/hosts/common/programs/captree.nix
@@ -2,7 +2,8 @@
 {
   sane.programs.captree = {
     packageUnwrapped = pkgs.linkBinIntoOwnPackage pkgs.libcap-with-captree "captree";
-    sandbox.method = "bwrap";
+    sandbox.method = "bunpen";
     sandbox.isolatePids = false;
+    sandbox.extraPaths = [ "/proc" ];
   };
 }